Rotary engine



3 Sheets--Sheet l.

(No Model.)

C. MINDT.

ROTARY ENGINE.

No. 396,759. Patented Jan. 29, 1889.

ed X. 4. w WI,

WITNESSES 3 Sheets-Sheet 2.

(No Model.)

. C. MINDT.

ROTARY ENGINE.

No. 396,759. Patented Jan. 29, 1889.

(No Model.) 3 sheets-sheen s.

C. MINDT.

\ ROTARY ENGINE.

No. 396,759. y Patented Jan. 29, 1889.

h 'Il In if J E l I i cured suitable journal-boxes, a I/,t'or retain- UNITED STATES PATENT EEicE.

CARL MINDT, OF LISBON, NEIV HAMPSHIRE.

ROTARY ENGINE.

SPECIFICATON forming part of Letters Patent No. 396,759, dated January 29, 1889.

Serial No. 271,709. (No model.)

T o @ZZ 107mm, it may con/cern:

Be it known that I, CARL MINDT, a eitizen of the United States of America, residing at Lisbon, in the county of Grafton and State of New Hampshire, have invented certain new and useful Improvements in Rotary Engines, of which the following is a specification, reterenee being had therein to the accompanying drawings.

This invention pertains to certain new and useful improvements in rotary steam-engines, having for its object the production of a device ot' this class embodying advantages in points ot simplicity, durability, general efficiency, and inexpensiveness. v

The invention consists, briefly, ol' a series of separate steam chambers or compartments, all the partitions or win gs of which are connected to the mai n shaft, said chambers or compartments being each supplied with steam, wherebythe same are forced in their revolution, the degree of which is regulated by means ot' a suitable governor; and the invention, therefore, comprises the detail construction, eombination, and arrangement ot' parts, substantially as hereinafter fully set forth, and particularly pointed out in the elai ms.

In the accompanying drawings, Iiigurel is a view in perspective ot' my inventitm. Fig. 2 is a side elevation thereol." with one side of' the inelosing casing or cylinder removed. Fig. 3 is a vertical sectional view thereof. Fig. 4 is a horizontal sectional view taken on the line ma?, Fig. 2. Fig. 5 is a detail perspective view. Fig. (i is a viewin side elevation of the governor employed in connection with my invention. Y

Corresponding parts in the several ligures are denoted by the same letters ot. reference.

Referring to the drawings, A designates the inelosing casing or cylinder of my improved rotary engine, the sides o o of which are provided with central openings, wherein are seing therein, so as to be free to revolve, the main shaft h. To this inelosing casing or cylinder are secured the ends of steam-inlet pipes b b', entering said casing or cylinder in opposite directions, as shown, the object of which being to provide means fordriving the engine in the desired direction. To this in elosing easing or cylinder are also connected, at point-s adjacent the ends oi the steam-inlet pipes l1', the ends of steam-outlet pipes b2 Ui. These steamoutlet pipes are of course provided with ordinary valves, D, so as to open or close the respective pipes when desired. Each steam-inlet pipe is provided with a tlirottle-valve, bi, operated each by suitable means, hereinafter described.

',lo the main shaft li are connected the inner ends ot divergent wings orplates C each of said wings being emnposed of two plates, (l d, the same being united or heldV together by means oit nntted bolts (Z2, passed through slots di in one ol' said plates, whereby the joint length ot.' said plates can be increased or diminished, as may be necessary. The upper end ot each plate d is curved in opposite directions, as at d", the outer ends ot' said curved portions being designed to bear snugly against the inner surface of the casing or cylinder A, and said ends can be always held against said casing or cylinder by reason of the means stated for securing the plates together. It will be seen that each two wings or plates form a steam-tight chamber or compartment extending from the inner surface ot' the casing or cylinder to the center thereof.

Throughout the entire ci reumference ot' the inclosin g casing or cylinder are formed openings or apertures wherein are secured petcockvalves D D, the same being provided with short transverse rods D. rlhe bars of all the petcocks are connected atv their outer ends by a series of suitably-arranged chains, E E, whereby said valves will all be opened or closed simultaneously. These peteocks are designed to allow the escape oi a limited amount. ol' steam either in the starting ot' the engine or during the operation thereof.

In practice when it is desired to effect the revolution ol' the engine in the direction ot' thearrow n steam is admitted through the stealn-inlet pipe b', which in entering that one ot the steam-con1partments coincident therewith will torce the same away from its inner end, starting the revolution of the shaft B and bringing the next one ot the steam-compartments into line with said steam-inlet pipe, and so on until all ot' said compartments are filled with steam, which will ei'i'ect the rapid revolution of the sh aft B. Vhen that steamcompartment Iirst supplied with steam has nearly completed its revolution, its contained steam will escape therefrom through the steam-outlet pipe b2, the valve of which has been opened for the purpose. By this means a rapid and continuous revolution of the engine is obtained.

lVhen it is desired to revolve the engine in the direction opposite to that above detailed, the same is accomplished by admitting' the steam through the steam-inlet pipe b, permitting the same to escape through the steamoutlet pipe b3, the throttle and valve of the pipes I) b2 being closed for the purpose.

In connection with my invent-ion a governor, F, is employed for regulating' the revolution ot' the engine. di'nary construction and is supported in position by suitable means. Upon a shaft, f, carrying a pinion gearing with a pinion of the' governor, is secured 'a band-'wheehfQ around which is passed a band or belt, f2, also passed around a second band-wheel, f3, fast upon the main shatt B. By this means motion is transmitted to the governor.

To each throttle b" in each steam-inlet pipe is connected one end ot' a rod, g', the outer end oit which is connected to one rod ot a series of rods, G, and to these rods is connected one end ol` a rod, gi", secured at its other end to the governor-shaft. By this arrangement the operator can, regulate the supply of steam to the engine by simply grasping one rod of the series of rods G.

From the foregoing description'it will be seen that the movement of my improved rotary engine can be regulated as desired, and that by reason of the described formation of Said governor is of orthe wings or plates each two of said wings or plates constitute a separate steam chamber or compartment, whereby the driving of the engine is greatly augmented.

I claim as my inventionl. As an improvement in rotary engines of the class herein described, the wings or plates con'iposed each of two plates, one of which is slotted, and connected together by nutted bolts, substantially as shown and described.

2. The herein described wings or plates composed each of two plates, one of which is slotted and the other is curved in opposite directions at its outer end, substantially as shown and described, said plates being held together by means of nutted bolts.

3. The herein-described rotary engine havin the series of separate steam-compartments composed each of plates having' oppositelycurved outer ends, and the steam inlet and outlet pipes, substantially as shown and described.

l. The herein-described improved rotary engine comprising the inclosing casing or cylinder having apertured sides, the main shaft, the series of separate steam-compartments composed of adjustable plates having oppositely-curved outer ends, the steam inlet and outlet pipes, the petcock-valves and their chain connections, the governor, and the steam-supply -regulating throttle, substantially as shown and described.

In testimony whereof I affix my signature in presence of two witnesses.

CARL MINDT.

lVitnesses:

A. A. WooLsoN, JOHN L. FOSTER. 

